NotesFAQContact Us
Collection
Advanced
Search Tips
Source
Publication Type
Reports - Evaluative1
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
National Assessment of…1
What Works Clearinghouse Rating
Showing one result Save | Export
Thomas, Neal – 1993
Mislevy (1984, 1985) introduced an EM algorithm for estimating the parameters of a latent distribution model that is used extensively by the National Assessment of Educational Progress. Second order asymptotic corrections are derived and applied along with more common first order asymptotic corrections to approximate the expectations required by…
Descriptors: Algorithms, Elementary Secondary Education, Estimation (Mathematics), Evaluation Methods